Show home heating go hints by john barclay heating expert poking fire bed from above forms clinkers smothers fire wastes fuel wa HILE a poker frequently is a handy implement to use on furnace let me caution y you oll using it for the purpose of agitating gi tating the fire bed from above hat at results in a lot of trouble for rou U and for your furnace stirring the fire through the fur lace ace door opening only mixes fishes hes with the live coals creat A ig 9 clinkers As you know clink rs 13 choke a fire and prevent the oal al from burning freely and com ebely also they clog the grates laking aking it difficult to shake the re e properly owing to the odd size and shape it I 1 lumps of coal at the point that 1 poked from above the fuel bed comes packed and this prevents the free passage of IT 0 thus forming clinkers clinks formed this way however use ause less trouble for ordinarily wy ey can be broken up and topped plied int into 0 the by gently making aking the grates service lct |